#include<iostream>
using namespace std;
#define DEBUG
int main()
{
	#define DEBUG
	#ifdef DEBUG
	#undef DEBUG
	cout<<"debuging"<<endl;
	#endif
	cout<<"running"<<endl;
	#ifdef DEBUG
	cout<<"step1"<<endl;
	#else
	cout<<"step2"<<endl;
	#endif
	return 0;
}